The message Huck finds inside the Bible that Sophia Grangerford has asked him to retrieve from the church is an example of . foreshadowing hyperbole satire understatement

If you mean how the great lakes formed, then  the great lakes began to form at the end of the last glacial period 14,000 years  ago, ice sheets  retreated, which led to exposing the basins they had carved into land which then filled with melt-water.